fix: add language-tools packages to npm workspace (#14640)

Author: Princesseuh

package.json

@@ -49,7 +49,8 @@
   "workspaces": [
     "packages/markdown/*",
     "packages/integrations/*",
-    "packages/*"
+    "packages/*",
+    "packages/language-tools/*"
   ],
   "engines": {
     "node": "^18.20.8 || ^20.3.0 || >=22.0.0"